APA (7th ed.) Citation

United States. Army. Corps of Engineers. Civil Works Directorate. (1974). 1972 recreation statistics.

Chicago Style (17th ed.) Citation

United States. Army. Corps of Engineers. Civil Works Directorate. 1972 Recreation Statistics. 1974.

MLA (9th ed.) Citation

United States. Army. Corps of Engineers. Civil Works Directorate. 1972 Recreation Statistics. 1974.

Warning: These citations may not always be 100% accurate.